Independent game development studio Airtight Games has confirmed via Twitter that it has officially gone out of business, but it did not provide any particular details on why the Redmond, Washington-based studio closed. Yesterday reports surfaced that the studios office were locked and a sign on the door indicated that the equipment inside the building was for sale.

"Thanks to all of the fans, family, friends and colleagues who supported us and made the last 10 years possible," Airtight said on Twitter.

"Thanks to all of the amazing people that worked on Dark Void, Quantum Conundrum, Murdered, Soul Fjord, Pixld and DerpBike," the company added is a subsequent tweet.

It is unclear how many staff were employed by Airtight following a layoff in April that saw 14 staff members laid off, but one former employee said that the company has been struggling since January.

Lee Scheinbeim, who served as lighting artist on Murdered: Soul Suspect (Airtight's most recently released game), said on Twitter:

"News of Airtight Games closing broke today but layoffs started as far back as January and many of us are still looking."

Airtight is best known for developing such games as Dark Void, Ouya roguelike Soul Fjord, and the Kim Swift-developed puzzler, and Quantum Conundrum.

Kim Swift, who spearheaded the development of Quantum Conundrum, left the company earlier this year to join Amazon's game studio.